The southern part of South America and the Antarctic peninsula are known as the world's
strongest hotspot region of stratospheric gravity wave (GW) activity. Large tropospheric …

Horizontal gravity wave (GW) refraction was observed around the Andes and Drake
Passage during the SouthTRAC campaign. GWs interact with the background wind through …

An aircraft turbulence encounter over the Drake Passage is investigated by combining
unique high‐frequency flight level data, vertical profiles of a near‐simultaneous radiosonde …

Abstract On 2019-02-14, at 1: 00 UTC, a large increase of ozone density at 8 km altitude was
detected above Hampton, Virginia using the NASA Langley Mobile Ozone Lidar, LMOL …

POLSTRACC: Airborne Experiment for Studying the Polar Stratosphere in a Changing Climate
with the High Altitude and Long Range Research Aircraft (HALO) in: Bulletin of the American …

Planetary waves disturbed the hitherto stable Arctic stratospheric polar vortex in the middle
of January 2016 in such a way that unique tropospheric and stratospheric flow conditions for …

In this study, we interpret two vertical turbulence measurements. We acquired these
uninterrupted high‐resolution dissipation rate profiles with the balloon‐borne instrument …

The composition of the extratropical transition layer (ExTL), which is the transition zone
between the stratosphere and the troposphere in the midlatitudes, largely depends on …

The Arctic winter 2015/16 was characterized by cold stratospheric temperatures. Here we
present a comprehensive view of the temporal evolution of chlorine in the lowermost …

Numerical weather forecast systems like the ECMWF IFS (European Centre for Medium-
Range Weather Forecasts–Integrated Forecasting System) are known to be affected by a …